Indexing cell delivery catheter

a cell and catheter technology, applied in catheters, other medical devices, coatings, etc., can solve the problems of tissue damage, multiple insertions, and large amount of tissue in the patient, and achieve the effect of tissue damage, and reducing the chance of tissue damag

Active Publication Date: 2009-08-18
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A problem with this approach is that multiple insertions disturb a large amount of tissue in the patient.
Each time that tissue is disturbed, there is a chance for tissue damage.
Steerable catheters exist, where the orientation and location of the distal tip can be changed while the distal tip is inserted in the patient, however, moving the distal tip while it is within the patient further disturbs tissue, which again, can lead to tissue damage.
Also, steerable catheters are typically more complex and expensive to manufacture.
A problem with this approach is that the large host catheter displaces a large amount of tissue, even though the number of insertions is reduced.

Method used

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  • Indexing cell delivery catheter
  • Indexing cell delivery catheter
  • Indexing cell delivery catheter

Examples

Experimental program
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Embodiment Construction

[0036]FIG. 1a shows a insertion device 100 according to one embodiment. The insertion device 100 in FIG. 1a is further shown in a sectional view as FIG. 1b, the section being taken along line 1b-1b.

[0037]The insertion device 100 includes a first tube 110, the first tube having a distal end 112 and a proximal end 114. Located on an upper surface of the proximal end 114 are a number of first indexing bumps 116. A central axis 102 is shown in FIG. 1b. The central axis 102 in this figure represents a central axis of the first tube. In one embodiment, the central axis 102 of the first tube is the same axis as an insertion axis of the insertion device 100.

[0038]The insertion device 100 further includes a second tube 130. The second tube 130 includes a distal end 132 and a proximal end 134. The proximal end 134 of the second tube 130 includes a knob portion 136, an indexing indicator 138 with a first index engaging recess 140, and a number of friction bumps 142. The proximal end 134 of th...

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Abstract

An insertion device and method of using and manufacturing an insertion device is shown, wherein the insertion device is capable of distributing a media over a large distribution volume inside a patient while reducing the amount of tissue disturbed by the procedure. Also shown is a computer-readable medium with instructions stored thereon, the instructions when executed operable to cause generation of a set of data for use with an insertion device. An insertion device and methods are shown that allows a series of iterations to be performed within a single insertion procedure that distributes media, such as cells for cell therapy, over a large volume.

Description

BACKGROUND[0001]1. Field of the Invention[0002]This invention relates to medical devices. Specifically, but not by way of limitation, this invention relates to medical devices for introduction of a media such as cells into a body cavity, such as within the human brain.[0003]2. Background[0004]In this document, the medical device that is described is inserted within a body cavity. While the insertion procedure could be directed at any of several locations within a patient, for the discussion in this document, a neurosurgical procedure will be used as an example. Assisting devices may also be used in combination with the present insertion device in a neurosurgical procedure. Such devices may include, but are not limited to, a stereotactic headframe, a trajectory guide, electronic tissue imaging equipment, and frameless reference systems.[0005]A common surgical technique inserts a medical device into a patient to a targeted area through a small opening that is surgically opened in the ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A61M5/00A61M3/00A61M25/00A61M25/06A61M31/00
CPCA61M25/0009A61M25/0662A61M25/0097A61M25/0045A61M2025/0008
Inventor SOLAR, MATTHEW S.PARMER, KARISMITH, PHILIPMURDOCK, FRANK C.
Owner MEDTRONIC INC
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